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HPLC-ICP-MS chromatogram of Se species standards (ST) and seleno-amino acids characterized from WT and Δatp1 cells after treatment with Na2SeO3. The Se species standards are: 1, l-selenocystine; 2, Se-methylseleno-l-cysteine; 3, d,l-selenomethionine.
Abbreviations: HPLC-ICP-MS, high-performance liquid chromatography–inductively coupled plasma mass spectrometry; WT, wild-type.
